Improvement in apparatus for bending metal bars



' UNITED STATES PATENT OFFICE.

GEORGE J. NEVEIL, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT IN APPARATUS FOR BENDING METAL BARS Specification forming part of Letters Patent No. 43,037, dated June 7, 1916-1.

To all whom it may concern:

Be it known that I, GEORGE J. NEvEIL, ot Philadelphia, Pennsylvania, have invented a Machine for Bending Metal Rods and Bars; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

My invention relates to an apparatus for bznding bars ot' metal; and it consists ot` a lever, in combination with an arm and projection, o? their equivalents, the whole being so arranged that a bar of metal introduced between the lever and arm will be retained in its posi. tion by the projection on the latter, while it is bent by the operation of the lever, as described lereinafter; and my invention further consists in the combination of the aforesaid lever and arm, or their equivalents, with an adjustable plate for determining the point where the bar is to be bent.

In order to enable others to make and use my invention, I will now proceed to describe its construction and operation.

On reference to the accompanying drawin As, which form a part of this specification, Figure l is a vertical section of my apparatus i'or bending metal rods and bars, and Fig. 2 au exterior view of the same.

A is the base of the machine, to which is secured the frame B. On this frame, near one end of the same, are two projections, a a, between which one end of the lever D iits snug ly, a pin, b, passing through both projections and the lever. Two plates, d d, are securedto or forni a part of this lever, one being situated on each side of thel same, and between these pates tits one end of the arm F, apin, h, passing through both plates and the arm. On this arm, andat a short distance from the pin lz., is a sharp projection, fi, and to the lever D is hung -a4 link,f, which is so arranged as to confine the arm in the position shown in Fig. 2, when desired. A plate, G, is so secured to one edge of the lever D by a setscrew, H, that it can be readily adjusted longitudinally thereon, the plate being turned n p at the end e, for apurpose described hereinafter. A stop, m, on the frame prevents the lever D from being depressed beyond the point illustrated in Fig. 1. Supposing it be necessary to bend a rod of iron preparatory to the same heilig formed into an ordinary coupling-link for railway-cars. The movable parts of the apparatus are in the first instance arranged in the positions shown in Fig. l, after which a rod, K, of iron, properly heated, is placed on the frame B, and pushed forward between the under side of the lever D and the arm F, until its end comes in contact with the end e of the adjustable plate G, this plate determining the point where the bar has to be bent. The arm F is then raised so that its sharp projection i comes in contact with the rod K and slightly indents the same, after which the end of the arm is connected to the lever D by means ot' the linkf. The lever is then raised and turned back to the position shown in Fig. 2, in doing which the bar will be bent as seen in that tigure, the size of the bend being determined by that of the lever. After releasing the arm F from the link f, and slightly elevating the said arm, the bent rod can be readily withdrawn from the lever. The bending of bars to be formed into links audother objects by the usual process of forging is an operation demanding skill and tedious manipulation, which my apparatus obviates, as the rod is not only bent, but has the proper dimensions of the bend imparted to it. At the same time it will be seen that on bending the rod the metal cannot be stretched or distorted at the bend.

I claim as my invention and desire. to secure by Letters Patent- 1. 'lhe lever D, in combination with the arm F and its projection z', or their equivalents, the whole being arranged and operating substantially as and for the purpose herein set forth.

2. The combination of the aforesaid lever and arm, or their equivalents, with the adjustable. plate G.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses. j

GEORGE J. NEVEIL.

Vit nesses:

CHAR-LES E. FosTEE, JAMES MoCAHEN. 

